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Título

Geodetic study of the 2006-2010 ground deformation in La Palma (Canary Islands): Observational results

AutorEscayo, Joaquin; Fernández Torres, José CSIC ORCID ; Prieto, Juan Francisco; Camacho, Antonio G. CSIC ORCID ; Palano, Mimmo; Aparicio, Alfredo CSIC; Rodríguez Velasco, Gema CSIC; Ancochea, Eumenio
Palabras claveA-DInSAR
GNSS
Gravimetry
La Palma
Canary Islands
Volcanic unrest
Surface deformation
Volcano geodetic monitoring
Fecha de publicación10-ago-2020
EditorMultidisciplinary Digital Publishing Institute
CitaciónRemote Sensing of Environment 12(6): 2566 (2020)
ResumenLa Palma is one of the youngest of the Canary Islands, and historically the most active. The recent activity and unrest in the archipelago, the moderate seismicity observed in 2017 and 2018 and the possibility of catastrophic landslides related to the Cumbre Vieja volcano have made it strongly advisable to ensure a realistic knowledge of the background surface deformation on the island. This will then allow any anomalous deformation related to potential volcanic unrest on the island to be detected by monitoring the surface deformation. We describe here the observation results obtained during the 2006-2010 period using geodetic techniques such as Global Navigation Satellite System (GNSS), Advanced Differential Synthetic Aperture Radar Interferometry (A-DInSAR) and microgravimetry. These results show that, although there are no significant associated variations in gravity, there is a clear surface deformation that is spatially and temporally variable. Our results are discussed from the point of view of the unrest and its implications for the definition of an operational geodetic monitoring system for the island.
Versión del editorhttp://dx.doi.org/10.3390/RS12162566
URIhttp://hdl.handle.net/10261/235491
DOI10.3390/RS12162566
Identificadoresdoi: 10.3390/RS12162566
issn: 2072-4292
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